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The INDsider
A Sunday Times-Picayune article reports on the progress of the Brown Dense Shale, which lies under Claiborne, Morehouse and Union parishes and also encompasses portions of Arkansas. Though leases and wells are springing up to explore the area, ...See all stories on this topic »

UPI.com
Southwestern officials had said their review of the Brown Dense play in southern Arkansas and northern Louisiana yielded "oil characteristics" in the shale. Devon Energy Corp., an Oklahoma company, confirmed in August that it too bought leases for ...See all stories on this topic »

Louisiana official reports activity on third expansive play.

Oil and natural gas producers have begun work on developing a third expansive play in Louisiana, giving the state one proved and producing formation and two that are being watched closely, according to Scott Angelle, secretary of Louisiana’s Department of Natural Resources.

The new area in northern Louisiana and southern Arkansas is referred to as the “Brown Dense” or “Lower Smackover” and is believed to be a limestone layer at the base of the Smackover formation, a long-time source of traditionally producer oil and gas in northern Louisiana, Angelle said Aug. 31.

He said the Brown Dense joins the Tuscaloosa marine shale as the second half of a Louisiana dense-rock play duo believed to have production potential similar to Louisiana’s Haynesville shale and the Barnett and Eagle Ford shales in Texas. The Tuscaloosa marine shale is believed to underlie much of central Louisiana, with exploration under way in areas from Vernon Parish to East Feliciana Parish, Angelle said.

He said initial development of the Brown Dense—generally believed to underlie northern Claiborne, Union, and Morehouse parishes—has barely begun. Southwestern Energy Co., Houston, has begun to drill its first well in the Brown Dense in Arkansas, and has announced it will seek a permit to drill a second in Claiborne Parish by yearend 2011, Angelle said (OGJ Online, July 29, 2011).